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US4825764A Expired / Lapsed US ⏱️ 0.0 years remaining

Connecting device between a firing fuse of a pyrotechnic product and an igniter

Assignee: Ruggieri SA
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Filing: 1987-02-24
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Granted: 1989-05-02
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Expires: 2007-02-24
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Abstract

Abstract The connecting device between a firing fuse (2) of a pyrotechnic product and an electric igniter (13) comprises an end member (5) forming a socket fixed to one end of the fuse (2) and a sleeve (12) surrounding the igniter (13) and constituting a plug engaged in the socket (5).

Inventors

  • 👤 Marie-Jacques Jullien

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 12:34
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/26; F42D; F42D1/00; F42D1/04; F42D1/043

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 65 words
A connecting device, for removably connecting an electric igniter to a fuse of a pyrotechnic producing, said device comprising an end member, having a socket, fixed to one end of said fuse, and a removable sleeve, surrounding and containing said igniter and forming a plug, engaged in said socket, wherein said socket is directly mounted in an aperture of a case of a pyrotechnic product.
Claim 2
Dependent Claim 65 words
A connecting device, for removably connecting an electric igniter to a fuse of a pyrotechnic producing, said device comprising an end member, having a socket, fixed to one end of said fuse, and a removable sleeve, surrounding and containing said igniter and forming a plug, engaged in said socket, wherein said socket is directly mounted in an aperture of a case of a pyrotechnic product.
Claim 3
Dependent Claim 203 words
A connecting device for removably connecting an electric igniter to a fuse of a pyrotechnic producing, said device comprising an end member, having a socket, fixed to one end of said fuse, and a removable sleeve, surrounding and containing said igniter and forming a plug, engaged in said socket; wherein said fuse has a sheath, and said socket comprises an integral tubular connector engaged between said fuse and said sheath; wherein said tubular connector has outer projection means, for axially maintaining said socket relative to said sheath, and inner projection means for axially maintaining said fuse relative to said connector; wherein said socket has, at an end thereof remote from said connector, an inner flange means for maintaining in position said sleeve in said socket; wherein said socket has axial slot means permitting the separation of lateral wall portions of said socket when said sleeve is inserted into or withdrawn from said socket; and wherein the remote end of said socket has a central opening through which pass leads connected to said igniter, and further comprising protective cap means mounted on said socket, after engagement of said sleeve in said socket, and for pinching the leads against an external wall of said socket.
Claim 4
Dependent Claim 203 words
A connecting device for removably connecting an electric igniter to a fuse of a pyrotechnic producing, said device comprising an end member, having a socket, fixed to one end of said fuse, and a removable sleeve, surrounding and containing said igniter and forming a plug, engaged in said socket; wherein said fuse has a sheath, and said socket comprises an integral tubular connector engaged between said fuse and said sheath; wherein said tubular connector has outer projection means, for axially maintaining said socket relative to said sheath, and inner projection means for axially maintaining said fuse relative to said connector; wherein said socket has, at an end thereof remote from said connector, an inner flange means for maintaining in position said sleeve in said socket; wherein said socket has axial slot means permitting the separation of lateral wall portions of said socket when said sleeve is inserted into or withdrawn from said socket; and wherein the remote end of said socket has a central opening through which pass leads connected to said igniter, and further comprising protective cap means mounted on said socket, after engagement of said sleeve in said socket, and for pinching the leads against an external wall of said socket.
Claim 5
Dependent Claim 170 words
A connecting device for removably connecting an electric igniter to a fuse of a pyrotechnic producing, said device comprising an end member, having a socket, fixed to one end of said fuse, and a removable sleeve, surrounding and containing said igniter and forming a plug, engaged in said socket; wherein said fuse has a sheath, and said socket comprises an integral tubular connector engaged between said fuse and said sheath; wherein said tubular connector has outer projection means, for axially maintaining said socket relative to said sheath, and inner projection means for axially maintaining said fuse relative to said connector; wherein said socket has, at an end thereof remote from said connector, an inner flange means for maintaining in position said sleeve in said socket; wherein said socket has axial slot means permitting the separation of lateral wall portions of said socket when said sleeve is inserted into or withdrawn from said socket; and wherein said socket is directly mounted in an aperture of a case of a pyrotechnic product.
Claim 6
Dependent Claim 170 words
A connecting device for removably connecting an electric igniter to a fuse of a pyrotechnic producing, said device comprising an end member, having a socket, fixed to one end of said fuse, and a removable sleeve, surrounding and containing said igniter and forming a plug, engaged in said socket; wherein said fuse has a sheath, and said socket comprises an integral tubular connector engaged between said fuse and said sheath; wherein said tubular connector has outer projection means, for axially maintaining said socket relative to said sheath, and inner projection means for axially maintaining said fuse relative to said connector; wherein said socket has, at an end thereof remote from said connector, an inner flange means for maintaining in position said sleeve in said socket; wherein said socket has axial slot means permitting the separation of lateral wall portions of said socket when said sleeve is inserted into or withdrawn from said socket; and wherein said socket is directly mounted in an aperture of a case of a pyrotechnic product.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-05-01 1992-10-31 1993-05-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-05-01 1996-10-31 1997-05-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-05-01 2000-10-31 2001-05-02 $7700.00 Window Closed / Lapsed

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